Grade 8 Steel Washers | McMaster-Carr

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System of Measurement

Screw Size

OD

Thickness

0.005" to 0.024"

0.014" to 0.033"

0.020" to 0.040"

0.036" to 0.065"

0.049" to 0.068"

0.051" to 0.080"

0.051" to 0.084"

0.055" to 0.065"

0.055" to 0.072"

0.064" to 0.080"

0.064" to 0.083"

0.064" to 0.104"

0.068" to 0.088"

0.074" to 0.121"

0.079" to 0.098"

ID

Finish

Corrosion-Resistant Coated

Zinc Yellow-Chromate Plated

Washer Type

Fastener Strength Grade/Class

Washer Designation

General Purpose

Performance

Corrosion Resistant

Hardness

Rockwell 15N 80

Rockwell 15N 85

Specifications Met

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

REACH

Countersink Angle

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286 Products

Washers

General Purpose Washers

General Purpose Washers

Your go-to metal washer for every screw size

Oversized Washers

Oversized Washers

Exaggerated diameters and thicknesses to cover large holes or to create gaps

SAE Washers

Meet SAE sizing standards and typically have smaller diameters than USS washers

USS Washers

Meet USS sizing standards and typically have larger diameters than SAE washers

Undersized Washers

Undersized Washers

Pair with fasteners that have narrow heads, such as cheese and socket head screws

Structural Washers

Structural Washers

Distribute pressure under structural screws and nuts in columns, joists, and I-beams

Other Products

Finishing Washers

Finishing Washers

Screw heads sit flush to prevent snagging and to create a neat, finished appearance

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)